CN107256199A - A kind of monobus circuit of low-power consumption - Google Patents
A kind of monobus circuit of low-power consumption Download PDFInfo
- Publication number
- CN107256199A CN107256199A CN201710415949.1A CN201710415949A CN107256199A CN 107256199 A CN107256199 A CN 107256199A CN 201710415949 A CN201710415949 A CN 201710415949A CN 107256199 A CN107256199 A CN 107256199A
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- CN
- China
- Prior art keywords
- resistance
- power consumption
- low
- control chip
- monobus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The present invention discloses a kind of monobus circuit of low-power consumption, purpose is to solve the problem of monobus circuit power consumption is big, it includes host device and slave devices, the slave devices include being used for the data transmission module of the host device data exchange and the power transfer module for providing electric energy for the slave devices, and the power transfer module and the data transmission module are connected by monobus with the host device.The present invention passes through the data transmission module for slave devices and host device data exchange and the power transfer module for providing electric energy for slave devices, electric energy can be provided in monobus and can transmit data again by realizing, monobus circuit power consumption is reduced, with preferably energy-saving effect.
Description
Technical field
The present invention relates to electronic applications, more particularly to be a kind of low-power consumption monobus circuit.
Background technology
Single Wire Bus Technology refers to use single signal wire, both transmits clock, data are transmitted again, and data transfer is two-way
, it have save input and output mouth line resource, it is simple in construction, with low cost, many advantages, such as be easy to bus extension and safeguard.
But, existing monobus is usually three-wire system, i.e. ground wire, power line and data wire, due to power line and
Data wire splits design, and the power dissipation ratio of so whole monobus circuit is larger.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of monobus circuit of low-power consumption, realize reduction monobus
The purpose of circuit power consumption.
To solve the above problems, the present invention proposes that a kind of monobus circuit of low-power consumption, including host device and slave are set
It is standby, the slave devices also include be used for and the host device data exchange data transmission module and for for it is described from
Machine equipment provides the power transfer module of electric energy, and the power transfer module and the data transmission module pass through monobus and institute
State host device connection.
According to one embodiment of present invention, the host device includes main control chip U1 and resistance Rswi；The master
Power end VCCs of the chip U1 including power end VCC and interface end SWI, the main control chip U1 is controlled by resistance Rswi with connecing
Mouth end SWI connections.
According to one embodiment of present invention, the host device includes resistance R4, and described resistance R4 one end is connected to electricity
Rswi and interface end SWI junctions are hindered, the other end is connected with the slave devices.
According to one embodiment of present invention, the power transfer module includes including voltage-stablizer U2, the voltage-stablizer U2
Input VIN；
The other end of the resistance R4 is connected by the input VIN connections of the voltage-stablizer U2 with the slave devices.
According to one embodiment of present invention, the power transfer module include resistance R1, resistance R2, diode D1 and
Electric capacity C1；
The voltage-stablizer U2 includes output end VOUT, Enable Pin EN and earth terminal GND；
The positive pole of the diode D1 is connected with output end VOUT, and negative pole is connected with one end of the electric capacity C1, the electricity
The other end for holding C1 is connected with data transmission module；
One end of the resistance R1 is connected to the input VIN and the Enable Pin EN junction, and the other end passes through
The resistance R2 ground connection.
According to one embodiment of present invention, the voltage-stablizer U2 is low-dropout regulator.
According to one embodiment of present invention, the data transmission module include control chip U3, FET M1 and
Resistance R3；
The drain electrode of the FET M1 is connected to resistance R4 and voltage-stablizer U2 input VIN junction, source
Pole is grounded, and grid is connected by resistance R3 with control chip U3.
According to one embodiment of present invention, the data transmission module includes control chip U3, the control chip U3
Including interface end IO, Voltage Reference end VREF, power end VCC and earth terminal GND and built-in comparator COMP；
The comparator COMP includes differential signal end DP and differential signal end DM, and the differential signal end DP is connected to
Resistance R1 and resistance R2 junction, differential signal end DM are connected with Voltage Reference end VREF；
The grid of the FET M1 is connected by resistance R3 with control chip U3 interface end IO；
The power end VCC is connected to electric capacity C1 and diode D1 junction, electric capacity the C1 other end and earth terminal GND
Earth.
According to one embodiment of present invention, the comparator COMP includes being used for inputting comparative result to control chip U3
The output end RCV, the control chip U3 of signal control the work shape of the FET M1 according to the comparative result signal
State.
According to one embodiment of present invention, the main control chip U1 is embedded chip.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art：
A kind of monobus circuit of low-power consumption of the present invention passes through the data for slave devices and host device data exchange
Transport module and the power transfer module for providing electric energy for slave devices, electric energy can be provided again in monobus by realizing
Data can be transmitted, monobus circuit power consumption is reduced, with preferably energy-saving effect.
A kind of monobus circuit of low-power consumption of the present invention passes through the comparator COMP built in control chip U3 and field-effect
Pipe M1 setting, power line and data wire are merged together according to different bit identifications, it is to avoid power supply in the prior art
Splitting for line and data wire, saves wire rod, facilitates installation to a certain extent.
Brief description of the drawings
Fig. 1 is a kind of modular structure schematic diagram of the monobus circuit of low-power consumption of one embodiment of the invention；
Fig. 2 is a kind of position encoding and decoding schematic diagram of the monobus circuit of low-power consumption of one embodiment of the invention.
Label declaration in figure：
100th, host device；200th, slave devices；201st, power transfer module；203rd, data transmission module.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Many details are elaborated in the following description to fully understand the present invention.But the present invention can be with
Much it is different from other manner described here to implement, those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited to the specific embodiments disclosed below.
Referring to Fig. 1, the embodiment of the present invention provides a kind of monobus circuit of low-power consumption, wherein, monobus is applied to single
Individual host computer system, can control one or more slave devices.When only one of which slave devices are located on monobus, main frame system
System can be operated according to single node system；And when multiple slave devices are located on monobus, then host computer system is according to multinode system
System operation.The one-way road circuit of the low-power consumption is mainly used in single node system operation.
Fig. 1 shows a kind of modular structure schematic diagram of the monobus circuit of low-power consumption of the embodiment of the present invention, such as Fig. 1 institutes
Show, a kind of monobus circuit of low-power consumption of the embodiment of the present invention includes host device 100 and slave devices 200, wherein, main frame is set
Standby 100 are connected by monobus with slave devices 200.
Host device 100 includes main control chip U1, resistance R4, resistance R5 and resistance Rswi, wherein, main control chip U1 is excellent
Elect embedded chip as.Main control chip U1 includes power end VCC, interface end SWI and earth terminal GND, wherein, interface end
SWI is the signal name of RSIO buses, RSIO buses only need to solid wire can be achieved host device 100 and slave devices 200 it
Between both-way communication；Power end VCC is connected by resistance Rswi with interface end SWI；Resistance R4 one end be connected to resistance Rswi with
Interface end SWI junctions, the other end is connected with slave devices 200；Earth terminal GND is connected to ground by resistance R5.
Slave devices 200 include be used for and the data exchange of host device 100 data transmission module 203 and for for from
Machine equipment 200 provides the power transfer module 201 of electric energy, wherein, power transfer module 201 and data transmission module 203 pass through
Monobus is connected with host device 100.
Specifically, power transfer module 201 includes voltage-stablizer U2, resistance R1, resistance R2, diode D1 and electric capacity C1,
Wherein, voltage-stablizer U2 includes input VIN, output end VOUT, Enable Pin EN and earth terminal GND；Input VIN passes through resistance
R4 is connected with the main control chip U1 of host device 100 interface end SWI；Diode D1 positive pole is connected with output end VOUT, is born
Pole is connected with electric capacity C1 one end, and the electric capacity C1 other end is connected with data transmission module 203；Resistance R1 one end is connected to defeated
Enter to hold VIN and Enable Pin EN junction, the other end is grounded by resistance R2；Earth terminal GND is then directly grounded.
Preferably, voltage-stablizer U2 is low-dropout regulator.
Data transmission module 203 includes control chip U3, FET M1 and resistance R3, wherein, FET M1's
Drain electrode is connected to resistance R4 and voltage-stablizer U2 input VIN junction, and source ground, grid passes through resistance R3 and control core
Piece U3 connections.
Control chip U3 includes interface end IO, Voltage Reference end VREF, power end VCC and earth terminal GND and built-in
Comparator COMP, wherein, comparator COMP include differential signal end DP, differential signal end DM and output end RCV, difference letter
Number end DP is connected to resistance R1 and resistance R2 junction, and differential signal end DM is connected with Voltage Reference end VREF, output end
RCV, for inputting comparative result signal to control chip U3, control chip U3 controls FET M1 according to comparative result signal
Working condition；FET M1 grid is connected by resistance R3 with control chip U3 interface end IO；Power end VCC connections
In electric capacity C1 and diode D1 junction, electric capacity the C1 other end and earth terminal GND earths.
Referring to Fig. 2, the monobus circuit for ease of understanding a kind of low-power consumption of the embodiment of the present invention, the embodiment of the present invention one
The operation principle for planting the monobus circuit of low-power consumption is as follows：
For power transfer module 201, its list exported by voltage-stablizer U2 to host device 100 by interface end SWI
Bus signals are changed, then the partial pressure for the diode D1 and electric capacity C1 for passing through series connection and bypass cause control chip U3 electricity
Source VCC can obtain stable working power.
For data transmission module 203, the bleeder circuit and comparator COMP being made up of resistance R1 and resistance R2 make
Signal waveform can normally be recognized and then carry out the detection of bit synchronization signal by obtaining control chip U3, so that encoded accordingly,
Decoding and the reception of data, transmission.
In order to make it easy to understand, the embodiment of the present invention carries out data by taking the deformation Miller code based on pulse position modulation as an example
The understanding of the specific works details of transport module 203, wherein, deformation Miller code is to make the positive/negative impulse hits of Miller code
Replaced with negative pulse, the negative saltus step in half of bit period represents ' 1 ', saltus step does not occur and represents ' 0 ', positive pulse saltus step is then made
For bit period synchronizing signal.
As illustrated in fig. 2, it is assumed that host device 100 interface end SWI provide dutycycle be 75%, peak-to-peak value be VL to VH,
Frequency 100KHz carrier signal, host device 100, the information transfer of slave devices 200 complete to adjust in the carrier signal
System demodulation, its specific works are as follows：
The reception stage of slave devices 200：After correctly bit synchronization signal being recognized by comparator COMP at t0/t0 ' places,
(t1-t2/t1 '-t2 ') has detected whether trailing edge change in 1/2nd carrier cycles, to recognize ' the 0 ' of current transmission position
Or ' 1 ' state.
The transmission phase of slave devices 200：Pass through the FET M1 of resistance R1 and data transmission module 203, control
Chip U3 interface end IO completes the coding and modulation to data to be sent, and when sending, slave devices 200 pass through comparator
COMP is detected after bit synchronization signal (t0/t0 '), 1/2nd carrier cycle positions complete to current transmission position ' 0 ' or
' 1 ' IO drivings.
Further, for decoding process, according to deformation Miller code rule, when data bit ' 1 ' is transmitted, level is at two points
One of a trailing edge change is produced at period position, when data bit ' 0 ' is transmitted, level is at 1/2nd period positions without change
Change.Detected by comparator COMP after bit synchronization signal, comparator COMP output ends RCV comparative result signal is controlled coremaking
Piece U3 is detected.Within 1/2nd follow-up cycles, the negative pulse saltus step of level represents ' 1 ', and level represents ' 0 ' without saltus step,
Control chip U3 can enter line position decoding according to this rule, obtain the binary data of the transmission of host device 100, then enter two
Data conversion processed completes whole single bus data decoding process into hexadecimal.
Compared with prior art, a kind of monobus circuit of low-power consumption of the embodiment of the present invention has the advantages that：
A kind of monobus circuit of low-power consumption of the present invention passes through for slave devices 200 and the data exchange of host device 100
Data transmission module 203 and power transfer module 201 for providing electric energy for slave devices 200, realize single total
Line can provide electric energy can transmit data again, reduce monobus circuit power consumption, with preferably energy-saving effect.
A kind of monobus circuit of low-power consumption of the present invention passes through the comparator COMP built in control chip U3 and field-effect
Pipe M1 setting, power line and data wire are merged together according to different position information, it is to avoid power supply in the prior art
Splitting for line and data wire, saves wire rod, facilitates installation to a certain extent.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting claim, any this area
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and modification, therefore the present invention
The scope that protection domain should be defined by the claims in the present invention is defined.
Claims (10)
1. a kind of monobus circuit of low-power consumption, including host device and slave devices, it is characterised in that：The slave devices bag
Include for the data transmission module with the host device data exchange and the electricity for providing electric energy for the slave devices
Source modular converter, the power transfer module and the data transmission module are connected by monobus with the host device.
2. the monobus circuit of low-power consumption as claimed in claim 1, it is characterised in that：The host device includes main control chip
U1 and resistance Rswi；The main control chip U1 includes power end VCC and interface end SWI, the power supply of the main control chip U1
End VCC is connected by resistance Rswi with interface end SWI.
3. the monobus circuit of low-power consumption as claimed in claim 2, it is characterised in that：The host device includes resistance R4,
Described resistance R4 one end is connected to resistance Rswi and interface end SWI junctions, and the other end is connected with the slave devices.
4. the monobus circuit of low-power consumption as claimed in claim 3, it is characterised in that：The power transfer module includes voltage stabilizing
Device U2, the voltage-stablizer U2 include input VIN；
The other end of the resistance R4 is connected by the input VIN connections of the voltage-stablizer U2 with the slave devices.
5. the monobus circuit of low-power consumption as claimed in claim 4, it is characterised in that：The power transfer module includes resistance
R1, resistance R2, diode D1 and electric capacity C1；
The voltage-stablizer U2 includes output end VOUT, Enable Pin EN and earth terminal GND；
The positive pole of the diode D1 is connected with output end VOUT, and negative pole is connected with one end of the electric capacity C1, the electric capacity C1
The other end be connected with data transmission module；
One end of the resistance R1 is connected to the input VIN and the Enable Pin EN junction, and the other end passes through described
Resistance R2 is grounded.
6. the monobus circuit of low-power consumption as claimed in claim 5, it is characterised in that：The voltage-stablizer U2 is low voltage difference voltage stabilizing
Device.
7. the monobus circuit of low-power consumption as claimed in claim 5, it is characterised in that：The data transmission module includes control
Chip U3, FET M1 and resistance R3；
The drain electrode of the FET M1 is connected to resistance R4 and voltage-stablizer U2 input VIN junction, and source electrode connects
Ground, grid is connected by resistance R3 with control chip U3.
8. the monobus circuit of low-power consumption as claimed in claim 7, it is characterised in that：The data transmission module includes control
Chip U3, the control chip U3 include interface end IO, Voltage Reference end VREF, power end VCC and earth terminal GND and interior
The comparator COMP put；
The comparator COMP includes differential signal end DP and differential signal end DM, and the differential signal end DP is connected to resistance
R1 and resistance R2 junction, differential signal end DM are connected with Voltage Reference end VREF；
The grid of the FET M1 is connected by resistance R3 with control chip U3 interface end IO；
The power end VCC is connected to electric capacity C1 and diode D1 junction, and the electric capacity C1 other end is in parallel with earth terminal GND
Ground connection.
9. the monobus circuit of low-power consumption as claimed in claim 7, it is characterised in that：The comparator COMP include be used for
The output end RCV of control chip U3 input comparative result signals, the control chip U3 are controlled according to the comparative result signal
The working condition of the FET M1.
10. the monobus circuit of the low-power consumption as described in claim 2-9 any one, it is characterised in that：The main control chip
U1 is embedded chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710415949.1A CN107256199B (en) | 2017-06-05 | 2017-06-05 | Single bus circuit with low power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710415949.1A CN107256199B (en) | 2017-06-05 | 2017-06-05 | Single bus circuit with low power consumption |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107256199A true CN107256199A (en) | 2017-10-17 |
| CN107256199B CN107256199B (en) | 2021-02-19 |
Family
ID=60023618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710415949.1A Active CN107256199B (en) | 2017-06-05 | 2017-06-05 | Single bus circuit with low power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107256199B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003775A (en) * | 2020-07-27 | 2020-11-27 | 苏州浪潮智能科技有限公司 | Single-level single-wire full-duplex bus communication method and system |
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| CN101309192A (en) * | 2007-05-18 | 2008-11-19 | 青岛海信电器股份有限公司 | Bus communication method |
| CN102759896A (en) * | 2012-07-22 | 2012-10-31 | 张金木 | Principal and subordinate communication system based on alternating current power lines |
| CN103684943A (en) * | 2012-09-02 | 2014-03-26 | 刘新丽 | Bus system with power supply transmission and data communication functions |
| CN103823776A (en) * | 2014-02-28 | 2014-05-28 | 上海晟矽微电子股份有限公司 | Unibus in communication with master equipment and slave equipment and communication method |
| US20150331819A1 (en) * | 2014-05-16 | 2015-11-19 | Denso Corporation | Slave communication device and bus communication system |
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2017
- 2017-06-05 CN CN201710415949.1A patent/CN107256199B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101309192A (en) * | 2007-05-18 | 2008-11-19 | 青岛海信电器股份有限公司 | Bus communication method |
| CN102759896A (en) * | 2012-07-22 | 2012-10-31 | 张金木 | Principal and subordinate communication system based on alternating current power lines |
| CN103684943A (en) * | 2012-09-02 | 2014-03-26 | 刘新丽 | Bus system with power supply transmission and data communication functions |
| CN103823776A (en) * | 2014-02-28 | 2014-05-28 | 上海晟矽微电子股份有限公司 | Unibus in communication with master equipment and slave equipment and communication method |
| US20150331819A1 (en) * | 2014-05-16 | 2015-11-19 | Denso Corporation | Slave communication device and bus communication system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112003775A (en) * | 2020-07-27 | 2020-11-27 | 苏州浪潮智能科技有限公司 | Single-level single-wire full-duplex bus communication method and system |
| US11741037B2 (en) | 2020-07-27 | 2023-08-29 | Inspur Suzhou Intelligent Technology Co., Ltd. | Single-level single-line full-duplex bus communication method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107256199B (en) | 2021-02-19 |
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Address after: 200233 Room 704, Building 2, No. 2570 Hechuan Road, Minhang District, Shanghai Patentee after: Shanghai Hangxin Electronic Technology Co.,Ltd. Address before: Room 5058, building B, 555 Dongchuan Road, Minhang District, Shanghai Patentee before: SHANGHAI AISINOCHIP ELECTRONIC TECHNOLOGY Co.,Ltd. |